The disciples asked, “Who is the greatest in the kingdom of heaven?” In Matthew 18:3-4, Jesus answered, “Truly, I say to you, unless you turn and become like children, you will never enter the kingdom of heaven. Whoever humbles himself like this child is the greatest in the kingdom.”  Childlikeness is the way to kingdom greatness. It is also the way to kingdom citizenship. You must become like a child to enter the kingdom of heaven. To be accepted into the kingdom is to be adopted by the King. Citizens of the kingdom are children of the King. Jesus affirms this in the invocation of The Lord’s Prayer: “Our Father in heaven.” The...